Method for producing hoods and arrangement of a plurality of hoods

Abstract

The invention relates to a method for producing hoods in the form of hair nets having meshes, creating hoods having a first dimension over the head from front to rear and a second dimension crosswise thereto. A strand (20) of a net having a mesh (23) is created from threads (21). The strand (20) has two longitudinal sides. The number of meshes (23) of the set crosswise to the longitudinal sides corresponds to the number of meshes (11) of the hair net to be produced along the first or second dimension of the hair net. On or neighboring the two longitudinal sides of the strand (20), one elastic thread (22) each is fed into the other meshes (23) of the net. At specified, regular distances, the two elastic threads (22) are guided together and connected to one another. The distance is chosen such that the number of meshes (23) of the net between two connection points (24) in the longitudinal direction of the strand (20) corresponds to the number of meshes (11) of the hair net to be produced along the first or second dimension of the hair net. The two elastic threads (22) are connected by joining to one another by means of a sealing and/or melting process. A weakness (25) is introduced in the connection region (24).

Claims

1. A hood arrangement that is formed into a chain consisting of a plurality of unseparated hoods, all of the plurality of unseparated hoods comprising: two elastic threads that pass through and which are guided along respective longitudinal sides of each of hoods, and meshes in the peripheral region of the respective hoods including plural mesh threads and that extend between the two elastic threads and form a net structure therebetween, said plurality of unseparated hoods constructed and arranged together to form said chain, every two adjacent hoods of the plurality of hoods being joined together at a joining region, the joining region being formed by a melting or bonding process of the two elastic threads with one another, which form surrounding edge threads, the joining region having a weakness between 'every two adjacent hoods, whereby the chain is first manufactured at a manufacturing site with all the hoods being unseparated and formed in one of a roll and accordion arrangement, whereby the chain is subsequently separated at a use site, different from the manufacturing site, between adjacent hoods at the joining region by means of a breaking at the joining region at the weakness, wherein each of the elastic threads is constructed as a covered thread, wherein the net structure is formed from one of a polyamide material and a polypropylene material, and wherein each covered thread comprises a core thread and an outer thread with the core thread constructed of a material that has a melting point that is greater than the melting point of the net structure.

2. The arrangement according to claim 1, wherein the core thread is constructed of a material that has a melting point that is also greater than the melting point of the outer thread of the covered thread.

3. The arrangement according to claim 2, wherein the core thread has a melting point that is at least 10 degree C higher than the material of threads of the net structure forming the meshes and of the material of the outer threads used for covering the core thread.

4. The arrangement according to claim 1, wherein the core thread has a melting point that is at least 30 degree C higher than the material of threads of the net structure forming the meshes and of the material of the outer threads used for covering the core thread.

5. The arrangement according to claim 1, wherein the joining region has a perforation.

6. The arrangement according to claim 1, wherein the joining region has a constriction line crosswise to the longitudinal direction of the chain of plurality of hoods.

7. The arrangement according to claim 1, wherein the core thread is comprised of an elastane.

8. The arrangement according to claim 1, including a dispensing package disposed at the use site.

9. The arrangement according to claim 1 including a dispensing package disposed at the use site to enable a final user to take a hood and separate the selected hood from the adjacent hood by means of a breaking by the user at the joining region at the weakness.

10. The arrangement according to claim 1, wherein the outer thread of the covered thread is constructed of a polyamide material.

11. A hood arrangement of a plurality of hoods in combination with a dispensing package, all of the plurality of hoods comprising: two elastic threads that pass through and which are guided along respective longitudinal sides of each of the hoods, and meshes in the peripheral region of the respective hoods including plural mesh threads and that extend between the two elastic threads and form a net structure therebetween, said plurality of unseparated hoods constructed and arranged together to form said chain, every two adjacent hoods of the plurality of hoods being joined together at a joining region, the joining region being formed by a melting or bonding process of the two elastic threads with one another, which form the surrounding edge threads, the joining region having a weakness between every two adjacent hoods, the chain being first manufactured at a manufacturing site with all the hoods being unseparated and formed in one of a roll and accordion arrangement, and said dispensing package disposed at a use site to enable a final user to take a hood and separate the selected hood from the adjacent hood by means of a breaking by the user at the joining region at the weakness, wherein each of the elastic threads is constructed as a covered thread, wherein the net structure is formed from one of a polyamide material and a polypropylene material, and wherein each covered thread comprises a core thread and an outer thread with the core thread constructed of a material that has a melting point that is greater than the melting point of the net structure.

12. The arrangement according to claim 11, wherein the core thread is constructed of a material that has a melting point that is also greater than the melting point of the outer thread of the covered thread.

13. The arrangement according to claim 12, wherein the core thread has a melting point that is at least 10 degree C higher than the material of threads of the net forming the meshes and of the material of the outer threads used for covering the core thread.

14. The arrangement according to claim 11, wherein the elastic threads comprise a thermoplastically fixed, particularly spiral-shaped, coiled polyamide.

15. The arrangement according to claim 11, wherein the joining region has a perforation.

16. The arrangement according to claim 11, wherein the joining region has a constriction line crosswise to the longitudinal direction of the chain of plurality of hoods.

17. The arrangement according to claim 11, wherein the core thread is comprised of an elastane and the outer thread is constructed of a polyamide material.

18. A hood arrangement that is formed into a chain consisting of a plurality of unseparated hoods, all of the plurality of unseparated hoods comprising: two elastic threads that pass through and which are guided along respective longitudinal sides of each of hoods and meshes in the peripheral region of the respective hoods including plural mesh threads and that extend between the two elastic threads and form a net structure therebetween, said plurality of unseparated hoods constructed and arranged together to form said chain, every two adjacent hoods of the plurality of hoods being joined together at a joining region, the joining region being formed by a melting or bonding process of the two elastic threads with one another, which form surrounding edge threads, the joining region having a weakness between every two adjacent hoods, whereby the chain is first manufactured at a manufacturing site with all the hoods being unseparated and formed in one of a roll and accordion arrangement, whereby the chain is subsequently separated at a use site, different from the manufacturing site, between adjacent hoods at the joining region by means of a breaking at the joining region at the weakness, wherein the net structure is formed from one of a polyamide material and a polypropylene material, and wherein the elastic threads each comprise a thermoplastically fixed, spiral-shaped, coiled polyamide.

19. The arrangement according to claim 18, wherein the coiled shape of the elastic thread provides elasticity.

20. The arrangement according to claim 19, wherein the coiled polyamide is absent any covering.

21. A hood arrangement that is formed into a chain consisting of a plurality of unseparated hoods, all of the plurality of unseparated hoods consisting of: two elastic threads that pass through and which are guided along respective longitudinal sides of each of hoods and meshes in the peripheral region of the respective hoods including plural mesh threads and that extend between the two elastic threads and form a net structure therebetween, said plurality of unseparated hoods constructed and arranged together to form said chain, every two adjacent hoods of the plurality of hoods being joined together at a joining region, the joining region being formed by a melting or bonding process of the two elastic threads with one another, which form surrounding edge threads, the joining region having a weakness between every two adjacent hoods, whereby the chain is first manufactured at a manufacturing site with all the hoods being unseparated and formed in one of a roll and accordion arrangement, whereby the chain is subsequently separated at a use site, different from the manufacturing site, between adjacent hoods at the joining region by means of a breaking at the joining region at the weakness, wherein the net structure is formed from one of a polyamide material and a polypropylene material, and wherein the elastic threads each comprise a thermoplastically fixed, spiral-shaped, coiled polyamide.

22. The arrangement according to claim 21, wherein the coiled shape of the elastic thread provides elasticity.

23. The arrangement according to claim 22, wherein the coiled polyamide is absent any covering.

Description

DESCRIPTION OF THE DRAWINGS

(1) An example of embodiment of the invention will be described in more detail below on the basis of the drawing. Herein:

(2) FIG. 1 shows a hood in an exemplary shape, viewed from the direction of its opening used for donning it;

(3) FIG. 2 shows a top view onto an excerpt of a series of nets or a strand directly after its formation prior to further processing to hoods; and

(4) FIG. 3 shows schematically a series of nets or a strand for carrying out an embodiment of the method according to the invention.

DETAILED DESCRIPTION

(5) A hood 10, as it is shown in exemplary form in FIG. 1, has a plurality of meshes 11. These meshes 11 are formed by threads 12.

(6) Threads 12 with meshes 11 together form a net. Meshes 11 of the net are wide enough that the hair is held back and at the same time a hairstyle is also maintained without pressing or adversely affecting the hair more than absolutely necessary.

(7) The net made up of threads 12 and meshes 11 can form a hood 10, and one or more elastic edge threads 13 is (are) provided. These elastic edge threads 13 surround an opening 14 of hood 10. The elastic edge threads 13 are fed into the outer edge meshes of the hair net made up of meshes 11 and belong there so that after the hood 10 is placed tightly on a human head, opening 14 does not slip and the hood is not accidentally pulled off. At the same time, the elastic edge threads 13 are dimensioned in their elasticity, so that wearing the hood 10 is not uncomfortable for the person wearing it.

(8) The hoods 10 are manufactured in the form of hair nets from a strand 20, which is illustrated in FIG. 2. This strand 20 is constructed from a plurality of individual threads 21, which form meshes 23 in between. The threads are continually combined with one another in zigzag lines automatically and according to a complicated system.

(9) The lengthwise extension of this strand 20 that is shown is endless, while the series of nets or strand 20 in the crosswise direction has as many meshes 22 as are required for one of the dimensions of hood 10 from FIG. 1 that is to be produced.

(10) Strand 20 is limited by two longitudinal sides. Two edge threads 22 are integrated into meshes 23 of the strand adjacent to these longitudinal sides. These edge threads 22 are elastic threads made of a covered rubber. The core of these edge threads comprises Lycra, whereby this core is covered by a polyamide thread. The desired elasticity is formed thereby.

(11) As mentioned, this strand 20 is produced endlessly. The individual hoods 10 corresponding to FIG. 1 must then still be obtained from this strand 20.

(12) A method for producing hoods 10 according to the invention is illustrated schematically in FIG. 3.

(13) For producing hoods 10 in the form of hair nets, first a strand 20 is produced from a plurality of individual threads 21 by means of a Raschel machine or a knitting machine (not shown), which is presumed to be at the left edge of the schematic representation in FIG. 3. These individual threads preferably comprise polyamide and form a net which leaves the Raschel machine as a strand. The individual threads 21 cross many times and form between them meshes 23 of this net of strand 20. A strand 20 of this type is also called a “net series” by professionals.

(14) The endlessly produced strand 20 is nearly flat in form and therefore possesses two longitudinal sides. An elastic edge thread 22 is continually fed into the meshes on each of these longitudinal sides. This elastic edge thread 22 preferably comprises a polyimide.

(15) Strand 20 is continually produced and transported away, in fact at a constant rate, from left to right in the representation in FIG. 3.

(16) Joining regions 24 are now introduced into this strand 20 at pre-determined and always equal distances. These joining regions 24 are indicated in FIG. 3 in such a way that they are formed by moving or pressing together strand 20 from both sides of strand 20, so that the two edge threads 22, which run along the longitudinal sides of strand 20, are brought together and lie next to one another.

(17) The other individual threads 21 of the net of strand 20 also then lie close together and surrounded by the two elastic edge threads 22, wherein the exact positioning is of little significance. The elastic edge threads 22 are preferably clearly thicker and more distinctive than the individual threads 21.

(18) The arrangement 30, which is indicated in FIG. 3, and which moves the two edge threads 22 together with the net of strand 20 at the pre-determined position, also melts or bonds the two edge threads 22 together with the other individual threads 21 at this position. For this purpose, an ultrasonic bonding device can be provided as arrangement 30 or in this arrangement 30; other suitable devices can also be used for melting or bonding the elastic edge threads 22.

(19) In the indicated preferred version, this joining region 24 is additionally provided with a weakness 25. This weakness 25 can be a perforation and/or also a notched line or a differently shaped weakness line.

(20) It can be seen in FIG. 3 that by the continuous further transport of strand 20, each largely uninfluenced region of strand 20 alternates with these joining regions 24 plus weaknesses 25.

(21) Regions that would be usable as hoods 10 are then formed each time between two joining regions 25. A region which would form a first hood 10, whose end 26 is found in a joining region 24, can be recognized on the right. Directly on the other side of a weakness 25 of the same joining region 24 is then the beginning 27 of a second hood 10.

(22) This second hood 10 then ends at another weakness 25 of the next joining region 24.

(23) In this way, these regions can be used as hoods 10; one needs only to break joining regions 24 at the weaknesses 25. This is carried out, however, not in the manufacture of strand 20 with hoods 10, but rather after the manufacture, the strand 20 is suitably rolled up just outside at the right of the figure, either onto rolls or in an accordion arrangement. The entire arrangement made up of a plurality of hoods 10 is jointly transported unseparated, and directly prior to the use of a hood 10, an end user separates a first hood 10 from a second hood 10 at the joining region 24 to the second hood 10 via the weakness 25, and thus makes it available for use. An opening 14 is automatically formed and the sections of the elastic edge threads 22, which are bonded together at the joining regions 24 as mentioned, and which extend from one joining region 24 to the next joining region 24, together form the elastic edge threads 13 of FIG. 1, which run around the opening 14 also forming in this way. The hood 10 can be used at this point.

(24) During transport, however, all hoods 10 can be handled together, unseparated, in order to facilitate transport.

LIST OF REFERENCE CHARACTERS

(25) 10 Hood 11 Meshes of a hood 10 12 Threads of the meshes 13 Elastic edge threads 14 Opening for donning 20 Strand 21 Individual threads of the net of the strand 22 Elastic edge threads of the net of the strand 23 Meshes of the net 24 Joining region 25 Weakness in the joining region 26 End of the first hood 10 27 Beginning of a second hood 10